Patman
Staff member
I thought this would be a good topic to bring up. What do you guys think about using
filters that are longer than stock? For the LT1 engine, they specify the PF25 filter (AC),
but the PF35 and PF1218 filters also fit and are about an inch longer. Many LT1 guys,
including myself, have used these filters.
My theory is that the longer filter not only traps more dirt, but also probably goes into
bypass mode a bit less often, allowing more oil to be filtered when cold, and more oil to
be filtered at higher rpms.
Thoughts?
filters that are longer than stock? For the LT1 engine, they specify the PF25 filter (AC),
but the PF35 and PF1218 filters also fit and are about an inch longer. Many LT1 guys,
including myself, have used these filters.
My theory is that the longer filter not only traps more dirt, but also probably goes into
bypass mode a bit less often, allowing more oil to be filtered when cold, and more oil to
be filtered at higher rpms.
Thoughts?